you said you have cured it with a reinstall So I would guess you have it. Corrupt files are the normal cause of blue screens (that is corrupt on the file system) so perhaps your drive is failing. Or the part Thunderbird was on is tired.

The drive is a few month old 1TB Seagate SSD. No I solved it by uninstalling thunderbird. I have not reinstalled it. I have been fighting these blue screens for months. I have tried many clean installs of windows but each time I installed Thunderbird. I brought it to a computer store and they uninstalled Thunderbird and no blue screens for 12 hours. This was the newest version.

WD Blue 3D NAND 1TB Internal SSD - SATA III 6Gb/s 2.5"/7mm Solid State Drive - WDS100T2B0A bought 3/17/2021. I dont think this is a bad drive. I have not had any issues with it.

unless you try reinstalling and can get them to start again we are at an impasse then.

Let me wait a few days to make sure the blue screens are REALLY gone. Then I will reinstall Thunderbird and see if they come back. They mostly happened when I opened Thunderbird. I am taking a class from Labfour and use Microsoft Teams for that. Normally I would just have Teams open and check my email and i would get the blue screen. Sometimes I would just have Teams open nothing else and I would get blue screens. They all seemed to go away when I uninstalled Thunderbird. I'll give it a few days. Then reinstall and see what happens. I find it odd that it seems that Thunderbird is the cause, but that seems the case.

The 'Teams' BSOD seems to an issue known by Microsoft. Please read info at the following link as it may help you.

• https://www.technipages.com/fix-microsoft-teams-blue-screen-errors

Many issues seem to be related to drivers. There are a lot of people in the microsoft support forums complaining about this same issue.

• https://answers.microsoft.com/en-us/msteams/forum/all/teams-causes-bsod/5c09b465-79f6-4fc1-89ca-88f5551fa598
• https://answers.microsoft.com/en-us/msteams/forum/all/i-get-a-bluescreencrash-my-computer-every-time-i/f69bbace-235b-4b60-895a-5694c57d3c09?page=1
• https://answers.microsoft.com/en-us/msteams/forum/all/microsoft-teams-and-blue-screen/b68ea0b3-1336-47f7-85e0-4be31bca5423?page=1

I would say fix that first and then reinstall Thunderbird. As this TEAMS BSOD is a known issue, I do not think it has anything to do with Thunderbird.

I have been troubleshooting this problem for months. I started thinking it was a driver issue. All my drivers are updated. Also I didnt start using Teams till recently and I had blue screens before I even installed Teams. The common program that was there the whole time I had problems was Thunderbird. Also now that i have uninstalled Thunderbird all blue screens have dissapeared. I am still using teams. Going to class, which means joining video calls. sharing screen. Everything. And it all works now without any blue screens. All cause I unsinstalled thunderbird. Now if you dont care, and don't want to isolate the issue, that is fine. I understand. Thunderbird was made to run in lenux. it probally just doesnt work well in Windows. I dont need to run Thunderbird on this system, and I would much prefer it to be stable. So if you don't care, I understand.

My guess is it is a driver issue, and it is perhaps related to Thunderbird use of hardware acceleration.

When you have Thunderbird installed and the hardware acceleration on preferences disabled then there is nothing in Thunderbird to cause a BSOD except disk i/o as BSOD occur only in ring 0 of the processor you are exclusively down to real mode drivers to cause them. Video, disk etc. very few windows applications access hardware directly other than driver software as there are simpler interfaces offered by the operating system that direct interaction with the hardware.

Matt said

My guess is it is a driver issue, and it is perhaps related to Thunderbird use of hardware acceleration.

Good call. Certainly worth checking out.

How to disable hardware acceleration in Thunderbird - assuming it is enabled.

Menu app icon > Preferences > General Scroll to the very bottom for 'Network & Disk Space' > 'Indexing' section uncheck the checkbox for 'Use hardware acceleration when available', so it not selected.

Then exit and restart Thunderbird.

Image below shows where to locate it. Note: 'Options' in Windows is now called 'Preferences'.

Unchecking the hardware acceleration seems to have fixed my issues. It's been over 1 hour and no blue screens. Thanks.